12.8 Operations on Fixed-Point Variables

Support for fixed-point types includes:

• Prefix and postfix increment and decrement operators (++, --)
• Unary arithmetic operators (+, -, !)
• Binary arithmetic operators (+, -, *, /)
• Binary shift operators (<<, >>)
• Relational operators (<, <=, >=, >)
• Assignment operators (+=, -=, *=, /=, <<=, >>=)
• Conversions to and from integer, floating-point, or fixed-point types

#include <stdfix.h>
sat fract test (sat fract a, sat fract b)
{
    return (a * b);
}
# Illustrative generated assembly with optimizations
test:
    mulq_rs.ph   $2,$4,$5
    j            $31